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Domed cities. The ... Small-scale Domed Cities There have been lots of attempts
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... western part of the Roman Empire in the 4th century AD, new cities were founded ... Here
a domed octagon 60 feet (18 meters) across is surrounded by a corridor, or ...
... western part of the Roman Empire in the 4th century AD, new cities were founded ... Here
a domed octagon 60 feet (18 meters) across is surrounded by a corridor, or ...
Submitted by jwhiting1031 on May 20, 2008
Category: Technology
Words: 925 | Pages: 4
Views: 33
Popularity Rank: 112,924
Average Member Grade: N/A (Add a Comment / Grade this Paper)
The goal of a domed city is to take a large urban area and cover it so that:
• The temperature is the same year round.
• There's never any rain or snow to spoil picnics and weddings.
• The cancerous effects of the sun are eliminated during outdoor activities.
Small-scale Domed Cities
There have been lots of attempts to create domed cities on a very small scale. Consider these examples:
• The Mall of America near Minneapolis is a tiny city under glass. It contains about 80 acres of floor space (on 27 acres of ground) holding more than 500 stores, 80 restaurants and an indoor amusement park.
• Biosphere 2 is a giant, completely sealed lab covering 3.15 acres.
• The two Eden greenhouses in England are geodesic domes that together cover about 5 acres.
• Any dome stadium covers eight to 10 acres.
What if we were to expand on these projects in a massive way, moving up to city-size and covering somewhere on the order of 650 acres -- approximately a square mile? We're talking about taking a square parcel of land measuring approximately one mile on each side, or a circular piece of land measuring 1.13 miles in diameter, and completely covering it.
The Mall of America is like a mini city covered in glass.
The first question is what technology would we use to cover such a huge space. Here are three possibilities:
• The Mall of America uses typical mall construction technologies -- concrete and block walls, trusses, skylights, and so on. It's not very glamorous or inspiring architecture (there would be lots of supporting posts and walls in the city, rather than the dazzle of a mile-wide dome), but it is easy to imagine a construction process using these same techniques to cover a square mile.
• The Eden project uses a geodesic dome and hexagonal panels covered with multiple, inflatable layers of a very light plastic foil. The weight of...
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